JP3536411B2 - Tractor front grill mounting device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front grill mounting device for a tractor. 2. Description of the Related Art A tractor is provided with a hood above an engine room.
In many cases, side covers are provided on both left and right sides, and a front grill is provided in a radiator room in front of a radiator. This front grill is easy to open and close,
Although it is necessary to make the hood easy, it is difficult to directly attach it to the rear hood, and if the hood can be opened and closed independently, the configuration is complicated and stable opening and closing is difficult to maintain. [0003] The present invention has been made in consideration of the above problems.
This is proposed in view of the above point. The upper part of the engine 14 is covered with the bonnet 1 and the left and right sides are covered with the side covers 1.
A tractor that is covered with front grille 3 that is configured to be detachable between the front portion of the bonnet 1 and the side covers 18 and 18 while being covered with the front and rear portions of the bonnet 1 and the side covers 18 and 18. Inside, 2
Hooks 7 are provided, and these hooks are
-33, and these hooks 7,
Spring 29 against hook bar 4 provided on front grill 3
Provided to be biased to engage more, and either one of left and right
Hook 7 and hook operating handle 8 are linked by link 28.
And hook the lower end of the hook operation handle 8 to a side cover.
A tractor front grille mounting device is provided so as to protrude outward from the lower end of the tractor. Attaching the detached front grill 3
At times, cover the front side of the hood and side cover 18
Approach the front grill 3 from the front side
Hook bar 4 inside the front grill 3
Attachment is performed by engaging the hooks 7, 7. Conversely
When removing the front grill 3
Operate the hook operation handle 8 projecting outward from the lower end.
Engage left and right hooks 7, 7 with hook bar 4
And remove the front grill 3 by moving the entire front grill 3 to the front side.
You . According to the present invention, the upper part of the engine 14 is covered with the bonnet 1 and the left and right sides are covered with side covers 18, 18.
A tractor covered with a front grille 3 which is configured to be detachable between the front portion of the bonnet 1 and the side covers 18, 18 at the front.
And two front covers inside the front parts of the side covers 18 and 18.
Are provided, and these hooks are connected by one bar 33.
While these hooks are connected,
Engagement with the hook bar 4 provided on the handle 3 by the spring 29
One of the right and left hooks
7 and the hook operating handle 8 are connected by a link 28,
The lower end of the hook operation handle 8 is located below the side cover 18.
A tractor characterized by being provided so as to protrude outward from an end.
Front grille mounting device,
When installing the 3
May come off during work or cause vibrations due to backlash.
Never. On the other hand, when removing this front grill 3
The hook operation provided at the lower part of the side cover 18 on one side
A pair of left and right hooks from the hook bar 4 while holding the handle 8
Since it is sufficient to remove 7, 7, the operation is easy and
Hook handle 8 is provided below the side cover 18.
Is not disturbed during work,
It can be constructed compactly without being caught . 1 and 2, a tractor body 9 has a front wheel 11 steerable by a steering handle 10.
And rear wheels 13 on both sides of the cockpit 12, and can be driven by the drive of an engine 14 disposed at the front. On the front side of the engine 14, a radiator stay 6 having a rectangular shape in a front view is provided on a front axle bracket 15,
The radiator 5 is fitted and held, and the engine room 17 between the radiator 5 and the rear dashboard 16 is covered with the bonnet 1 on the upper side, and the right and left sides with the side covers 18 and can be opened and closed together. Is provided.
In the radiator room 2 on the front side of the radiator 5, a front grill 3 is provided so as to be detachable.
Headlight 22, air cleaner, oil cooler, horn 23
And the like, and the front grill 3 has an inlet 19
Is provided to guide the engine 14 from the radiator 5 to the engine room 17 through the outside air to cool the engine 14. 20
Is a radiator fan between the engine 14 and the radiator 5. 24 is a fender and 25 is a lift arm. The radiator stay 6 is mounted and supported on a lower front axle bracket 15, and the radiator 5 is fitted and mounted inside the lower front axle bracket 15. Reference numeral 26 denotes a radiator cap, which is viewed upward from the upper opening of the radiator stay 6. The front end of the hood 1 and the side cover 18 can be superposed and attached to the outer periphery of the radiator stay 6. A hook 7 is provided outside the radiator stay 6.
Is rotatably provided by a pin 27, and can be opened by a handle 8 on one lower side via a link 28 against the resilience of a spring 29. The side cover 18 is provided so as to cover the outside of the hooks 7 and the links 28 and the like, and the handle 8 projects outward from the lower end of the side cover 18 to facilitate operation. A radiator cover 30 is provided on the radiator cap 26 of the bonnet 1 so as to be openable and closable. By opening the radiator cover 30 while the bonnet 1 is closed, the radiator cap 26 can be opened and closed. The front grill 3 has a hook bar 4 with which the hook 7 can be engaged fixed to an upper side inside by a mounting plate 31, and a lower end thereof is engaged with an engagement hole formed in the front axle bracket 15. It has a protrusion 32 that can be used. When installing the front grill 3, the protrusion 32
Is fitted into the engagement hole of the front axle bracket 15 and the upper part is pushed toward the bonnet 1 so that the upper hook bar 4 pushes and opens the hook 7 against the spring 29 to maintain the mounting posture. . When the front grill 3 is removed from this mounting position, the handle 8 is opened against the spring 29 so that the hook 7 comes off the hook bar 4 so that the front grill 3 is tilted forward. Just pull it upwards. As described above, the front edges of the bonnet 1 and the side cover 18 are supported by the radiator stay 6, and the rear end edge of the front grill 3 is also attached and supported via the hook bar 4, the hook 7, and the like.
A stable mounting configuration can be obtained. 3 to 5 are different from the above example in that
On the upper part of the radiator stay 6, the left and right sides of the arm bar 33 extending in the left and right direction are pivotally supported by pins 34 so as to be vertically rotatable. The arm bar 33 has hooks 7 at both ends. Hook bar 4
Is located at a position facing the hook 7,
The mounting plate 31 is fixed to the inside of the upper side of the front grill 3 and protrudes from the left and right sides of the mounting plate 31. The mounting plate 31 is fixed to the lower side of the grill plate 35 having a laterally inverted U-shape that is integrally mounted on the front grill 3 by tightening bolts 36. And shocks. Reference numeral 37 denotes a knob bolt for fastening the side cover 18 to the radiator stay 6. 6 and 7 are different from the above example in that :
A control unit 38 for controlling the tractor operation, which is mounted inside the fender 24 on the side of the cockpit 12, is covered with a cover 39 and fastened and fixed to a bolt 44 so as to be detachable. On the upper surface of the cover 39, knobs 40, 41, 42 for adjustment or operation are arranged. By arranging the knobs such as the control switches on the control cover 39 attached using the fenders 24 in this manner, waterproof,
Improves mud resistance. The cover 39 is attached to the lower bracket 43, and the bracket 43 is fastened with bolts 44 to the fender 24. Further, cost can be reduced. The knobs 40 to 42 are switches for initial setting and sensitivity switching such as horizontal control for controlling the left and right horizontal posture of the tractor working device and parallel control for controlling the left and right parallel posture. 8 and 9, the point different from the above example is that the horizontal control switch 4 for performing the horizontal control is used.
5, and a manual up / down switch 46 for manually moving up and down in the backup control for automatically raising the working device to the non-working position during reverse travel is provided on the fender 24 to improve operability. A cover 51 made of synthetic resin is provided on the lower surface, and waterproof and mudproofing of these switches 45 and 46 are performed. 47 is a stay provided on the lower surface of the fender 24 to which the switches 45, 46 and the like are attached. Stay 47 of fender 24
The switches 45 and 46 are mounted by using. The manual up / down switch 46 is operated by moving the lift arm 24 up and down by hydraulic pressure in a switching operation between up and down. Also, the horizontal control switch 45
Is composed of a changeover switch 48, a manual switch 49, and a tilt adjustment switch 50. These changeover switches 48
Is an automatic mode for automatically controlling and maintaining the working device in the left-right horizontal posture based on the detection of the left-right tilt angle of the vehicle body 9 by the horizontal control horizontal sensor, and a parallel mode for maintaining the vehicle body 9 and the working device in the left-right parallel state. The mode can be switched to a manual mode in which the left and right inclination angles of the working device are manually adjusted. The manual switch 49 is connected to the lift arm 24.
Can be moved up and down to adjust the horizontal control position of the working device. The tilt adjustment switch 50 is for appropriately adjusting and setting the left descent or the right descent of the working device.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a front grill attachment portion. FIG. 2 is a side view of the tractor. FIG. 3 is a side view showing another embodiment. FIG. 4 is a front view thereof. FIG. 5 is a plan view thereof. FIG. 6 is an exploded perspective view of a controller of the tractor . FIG. 7 is a front view of the fender unit. FIG. 8 is a plan view, a side view, and a rear view of a control switch unit showing another embodiment of FIG . 6 ; FIG. 9 is an enlarged plan view of a part thereof. [Description of Signs] 1 Bonnet 2 Radiator room 3 Front grill 4 Hook bar 5 Radiator 6 Radiator stay 7 Hook 8 Handle

Claims (1)

(1) The engine 14 is covered with a bonnet 1 and the left and right sides are covered with side covers 18 and 18, and the bonnet 1 and side covers 18 and 18 are covered in front.
Front grille 3 that is detachable across the front
In the tractor covered with the hood, two hooks 7, 7 are provided inside the front of the bonnet 1 and the side covers 18, 18.
When these hooks are connected with one bar 33,
In both cases, these hooks 7 are provided on the front grill 3
The spring 29 engages with the hook bar 4
The hook 7 and the hook 7 on either side
The operation handle 8 is connected with a link 28, and the hook operation is performed.
The lower end of the handle 8 from the lower end of the side cover 18
A tractor front grille mounting device characterized by being provided so as to protrude from the tractor.